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WattCycle 48V Expansion Cable for EcoFlow Delta 2/3 Series Battery Connection
✔ Compatible: EcoFlow DELTA 2 / DELTA 3 Series
✘ Not Compatible: DELTA Ultra, DELTA Pro, DELTA Mini, RIVER Series and other EcoFlow models
✔ Additional compatibility for Anker, Bluetti, OUPES and Pecron devices is currently in testing.
Use your EcoFlow DELTA with compatible 48V LiFePO4 batteries to unlock longer off-grid power for caravans, camping, backup energy and outdoor use.
✔ EcoFlow DELTA 2/3 Series Compatible Interface
✔ Portable Dimensions: L150 x W150 x H30 mm, 0.3kg, 1m cable
✔ Rapid Dual-Way Charging: Supports up to 50A for ultra-fast energy top-ups.
✔ Two-step Simple Setup: A fuss-free M8-to-XT150 connection without any complex tools required.
✔ Built to Last: High-grade 8AWG cabling with 100°C heat-resistant protection for maximum safety.
✔ Smart Safety: Independent energy management ensures your EcoFlow portable power station and WattCycle 48V Batteries remain protected at all times.
Local UK warehouse, more details in
Shipping Policy
Our batteries come with a5-year warranty, which can be extended to7 yearstotalupon product registration. Accessories are covered by a1-year warrantyand like-new (refurbished) batteries include a1-year warrantyFor full terms, conditions, and claim details, please visit:
Warranty Policy
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Fast, Free Shipping
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Buy now, pay later
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Hassle-Free Warranty
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Lifetime Customer Support
| EcoFlow (XT150-Style Connectors) | Cable | WattCycle 48V Batteries |
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WattCycle 48V Expansion Cable for EcoFlow Portable Power Station |
Note: This cable is designed to connect WattCycle 48V batteries to the EcoFlow portable power stations.
It is not compatible with 48V batteries from other brands.
Explore How to Connect the 48V Expansion Cable to EcoFlow
This Cable Changes EVERYTHING! DIY EcoFlow Expansion Batteries SOLVED! No Modding Cables!
In this video I test the brand new Plug N Play EcoFlow battery adapter from WattCycle! It gives you direct access to the 51.2v battery on the power station allowing for many different use cases. You want to add DIY expansion batteries? You want to power up EcoFlow accessories? This cable does it all! I also tested their new smart server rack batteries in the video. This whole setup worked super well!
11,000Wh EcoFlow Delta 3: The Best Hack Ever!
EcoFlow rates the Delta 3 for up to 5,000Wh using their proprietary expansion batteries — but what if you could more than double that using standard server rack batteries? In this video, I show you exactly how to do it using WattCycles' new EcoFlow-compatible battery cable, pushing the Delta 3 all the way to 11,000Wh of usable capacity.
Don't Buy EcoFlow Expansion Batteries - Do This Instead!
Instead of buying a whole new system, this setup lets you expand your power station’s usable capacity and keep your devices running much longer with a WattCycle 48v Server Rack Battery — perfect for off-grid setups, emergencies, or powering a shed/workshop.
The Great EcoFlow Rip-Off
This works with EcoFlow Delta 2, Delta 2 Max, Delta 3 series, and any EcoFlow with a 51.2V LiFePO4 battery. Check the sticker on the bottom of your unit. NMC chemistry power stations are NOT compatible.
TECH SPECS
GENERAL
| Dimensions (Inches) | 9.0 (L) x 5.6 (W) x 8.2 (H) |
| Weight | 20.8 lbs / 9.5kg |
| Waterproof Rating | IP65 |
| Warranty | 5 years |
| Housing Material | ABS (Flame Retardant Plastic) |
| Terminal | M8 bolts |
CELLS
| Cell | EV Grade A+ LiFePO4 Cells |
| Nominal Voltage | 12.8V |
| Nominal/Usable Capability | 100Ah |
| Energy | 1280Wh |
| Cycle Life | 5,000 cycles @100% DOD, 6,000 cycles @80% DOD, 15,000 cycles @60% DOD |
| Max Depth of Discharge (DOD) | 100% |
| Max. Expansion (Parallel & Series) | 4S4P |
| Certifications | SDS/UN38.3/FCC/CE/ROHS/UL |
| Internal Resistance | ≤40mΩ |
BMS
| BMS | 100A |
| Max. Continuous Output Power | 1280W |
| Max. Continuous Charge Current | 100A |
| Max. Continuous Discharge Current | 100A |
| Max. Discharge Current | 110A 10S; 150A 1S |
CHARGE SPECS
| Charge Voltage | 14.6V ± 0.2V |
| Charge Method | CC/CV |
| Recommend Charge Current | 20A (0.2C) |
| Charge Temperature | 0℃ to 50℃ / 32℉ to 122℉ |
| Discharge Temperature： | -20℃ to 70℃ / -4℉ to 158℉ |
| Storage Temperature | -10℃ to 50℃ / 14℉ to 122℉ |
| Low-Temperature Protection | Yes (32℉/0℃) |
| Low-Temperature Charging Protection Auto Recovery | Yes (41℉/5℃) |
